| Message ID | 20211125074752.274176-17-ruansy.fnst@fujitsu.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | generic: add some mmap CoW tests | expand |
On Thu, Nov 25, 2021 at 03:47:52PM +0800, Shiyang Ruan wrote: > Test for races or FS corruption when mmap writing to a file that's also > the target of a reflink operation. (MMAP version of generic/168,170) > > Signed-off-by: Shiyang Ruan <ruansy.fnst@fujitsu.com> Looks pretty straightforward, Reviewed-by: Darrick J. Wong <djwong@kernel.org> --D > --- > tests/generic/915 | 64 +++++++++++++++++++++++++++++++++++++++++++ > tests/generic/915.out | 4 +++ > 2 files changed, 68 insertions(+) > create mode 100755 tests/generic/915 > create mode 100644 tests/generic/915.out > > diff --git a/tests/generic/915 b/tests/generic/915 > new file mode 100755 > index 00000000..365f304c > --- /dev/null > +++ b/tests/generic/915 > @@ -0,0 +1,64 @@ > +#! /bin/bash > +# SPDX-License-Identifier: GPL-2.0 > +# > +# FS QA Test No. 915 > +# > +# Test for races or FS corruption when mmap writing to a file that's also > +# the target of a reflink operation. (MMAP version of generic/168,170) > +# > +. ./common/preamble > +_begin_fstest auto clone > + > +_register_cleanup "_cleanup" BUS > + > +# Import common functions. > +. ./common/filter > +. ./common/reflink > + > +# real QA test starts here > +_require_scratch_reflink > + > +echo "Format and mount" > +_scratch_mkfs > $seqres.full 2>&1 > +_scratch_mount >> $seqres.full 2>&1 > + > +testdir=$SCRATCH_MNT/test-$seq > +finished_file=/tmp/finished > +rm -rf $finished_file > +mkdir $testdir > + > +loops=1024 > +nr_loops=$((loops - 1)) > +blksz=65536 > + > +echo "Initialize files" > +echo >> $seqres.full > +_pwrite_byte 0x61 0 $((loops * blksz)) $testdir/file1 >> $seqres.full > +_pwrite_byte 0x62 0 $((loops * blksz)) $testdir/file2 >> $seqres.full > +_scratch_cycle_mount > + > +# mmap overwriter... > +overwrite() { > + while [ ! -e $finished_file ]; do > + seq $nr_loops -1 0 | while read i; do > + $XFS_IO_PROG -f -c "mmap -rw $((i * blksz)) $blksz" \ > + -c "mwrite -S 0x63 $((i * blksz)) $blksz" $testdir/file2 >> $seqres.full > + done > + done > +} > + > +echo "Reflink and mmap write the target" > +overwrite & > +seq 1 10 | while read j; do > + seq 0 $nr_loops | while read i; do > + _reflink_range $testdir/file1 $((i * blksz)) \ > + $testdir/file2 $((i * blksz)) $blksz >> $seqres.full > + [ $? -ne 0 ] && exit > + done > +done > +touch $finished_file > +wait > + > +# success, all done > +status=0 > +exit > diff --git a/tests/generic/915.out b/tests/generic/915.out > new file mode 100644 > index 00000000..4e77847b > --- /dev/null > +++ b/tests/generic/915.out > @@ -0,0 +1,4 @@ > +QA output created by 915 > +Format and mount > +Initialize files > +Reflink and mmap write the target > -- > 2.34.0 > > >
diff --git a/tests/generic/915 b/tests/generic/915 new file mode 100755 index 00000000..365f304c --- /dev/null +++ b/tests/generic/915 @@ -0,0 +1,64 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# FS QA Test No. 915 +# +# Test for races or FS corruption when mmap writing to a file that's also +# the target of a reflink operation. (MMAP version of generic/168,170) +# +. ./common/preamble +_begin_fstest auto clone + +_register_cleanup "_cleanup" BUS + +# Import common functions. +. ./common/filter +. ./common/reflink + +# real QA test starts here +_require_scratch_reflink + +echo "Format and mount" +_scratch_mkfs > $seqres.full 2>&1 +_scratch_mount >> $seqres.full 2>&1 + +testdir=$SCRATCH_MNT/test-$seq +finished_file=/tmp/finished +rm -rf $finished_file +mkdir $testdir + +loops=1024 +nr_loops=$((loops - 1)) +blksz=65536 + +echo "Initialize files" +echo >> $seqres.full +_pwrite_byte 0x61 0 $((loops * blksz)) $testdir/file1 >> $seqres.full +_pwrite_byte 0x62 0 $((loops * blksz)) $testdir/file2 >> $seqres.full +_scratch_cycle_mount + +# mmap overwriter... +overwrite() { + while [ ! -e $finished_file ]; do + seq $nr_loops -1 0 | while read i; do + $XFS_IO_PROG -f -c "mmap -rw $((i * blksz)) $blksz" \ + -c "mwrite -S 0x63 $((i * blksz)) $blksz" $testdir/file2 >> $seqres.full + done + done +} + +echo "Reflink and mmap write the target" +overwrite & +seq 1 10 | while read j; do + seq 0 $nr_loops | while read i; do + _reflink_range $testdir/file1 $((i * blksz)) \ + $testdir/file2 $((i * blksz)) $blksz >> $seqres.full + [ $? -ne 0 ] && exit + done +done +touch $finished_file +wait + +# success, all done +status=0 +exit diff --git a/tests/generic/915.out b/tests/generic/915.out new file mode 100644 index 00000000..4e77847b --- /dev/null +++ b/tests/generic/915.out @@ -0,0 +1,4 @@ +QA output created by 915 +Format and mount +Initialize files +Reflink and mmap write the target
Test for races or FS corruption when mmap writing to a file that's also the target of a reflink operation. (MMAP version of generic/168,170) Signed-off-by: Shiyang Ruan <ruansy.fnst@fujitsu.com> --- tests/generic/915 | 64 +++++++++++++++++++++++++++++++++++++++++++ tests/generic/915.out | 4 +++ 2 files changed, 68 insertions(+) create mode 100755 tests/generic/915 create mode 100644 tests/generic/915.out